diff --git a/README.md b/README.md
index 973558dd..1113d0d3 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,7 @@ for full information.
 * Apache2
  * libapache2-mod-php5
 * PHP 5.4+
+ * php5-json
  * php5-mysqlnd
  * php5-memcached
  * php5-curl